Valve lifter



1933- w. 1.. ZIEGLER ET AL 1,392,824

VALVE LIFTER Filed Jan. 17, 1931 W 12V V? T 017$ 1.47:7: Asa/Jae. .2/ 2g2 I Joan M Dun/mu.

35 In the drawing Patented Jan. 3, 1933 UNITED STATES: PATENT OFFICEWALTER L. ZIEGLEB AND JOSEPH W. DURNELL, 0]? LONG BEACH, CALIFORNIAVALVE LIFTER Application filed January 17, 1931. Serial No. 509,353.

This invention relates to a valve lifter engine head with the valvelifter shown in whereby the valves of an internal combustion Figure 6 inoperative position thereon. engine are so acted upon as to make themFigure 9 is a front elevation of a modified readily accessible forgrinding or replace form of spring support.

merit, Figure 10 is a perspective view of the sup- 53 An object of ourinvention is to provide a port shown in Figure 2. novel. reliable andsimple means for the re- Figure 11 is a perspective view of the supmovaland replacement of valves in internal port shown in Figure 9. combustionengines, and the like. Referring more particularly to the draw- 10Another object is to provide a novel valve ing, the numeral 1 indicatesan engine block 09 lifter which will allow the valves to be of the L,-or T head type, which includes a cleaned, ground, or removed withoutremovvalve 2, a spring 3 surrounding the valve ing the valve spring fromits position about stem and normally urging said valve against the valvestem, and without the removal of Its Seat, a m shaft 4, and a camfollower w the valve lifter assembly. In valve lifters heretofore inuse, the valve (15 Still another object is to provide a nove lcompressed y P Of the valve lifter in which there is less danger tovalYe hftel? Whlch engaged the bottom of the the workman, that is. he isless likely to injure g the keeper was then the Q his fingers bv thesudden expansion of the valve lifter was released, and the sprlng wasvalve spring due to the failure of the valve h f h around h Valve Q 73lifters heretofore in use to properly grip the Thls .reqmredc.on.slderable tune and with spring. our llfter we eliminate the extrawork and An advantage of our invention is to profi g 2 removmg the ValveSprmg from vide a valve lifter of the character stated in t e 00 Whenstarting to grind the valves or re- 75 l gl gg g g zggf keeper readilyplace the same, the cam shaft 4 is caused to A further advantage of ourinvention re? rotate, and one of the valves is raised in the sides inthe overhead raising of the valve i fi T g iii' Our i i prior to holdinvthe spring compressed. 00 18 i ap led an t 18 tool 3% Other objectsadvanta e and features of of handle i 91 extends from and 1S soinvention may appear from the accompanytegral Wlth a-palr of Spacedfingers's 8 h s 1 lug drawing, the sub oined detailed descripg fiz g lggi gfggg s 3:3 g fig and the appended chums valve, as shown inFigure 1. After the raising tool 6 has been inserted under the head 55Figure 1 1s a fragmentary, vertical, of the valve, the cam shaft 4 isrocked back l Y of block with our Valve so as to leave the follower 5free to drop away him? W P from the valve stem. The tool 6 is then op-Figure 2 1s a front elevation of the valve emted to lift the Valve 2upwardly which p h PPP compresses the spring 3. This operation is 93 311 9! P "l of the sameaccomplished by swinging the handle 7 down- Flgm'e4 19 i slde elevatloh of the "hive wardly in an are which causes thetool to r l errock on the curved portion 9 at the rear of Figure 5 1S abottom plan VIE 0f the the fingers 8&3? The spaced fingers are so 45same. arranged that the seat on the valve head can- 93 Figure 6 1s afragmentary. bottom plan t b ratched. view of a modified form of valvelifter. The spring support 10 is now inserted be- Figure is :1 sectionalview taken on line tween the bottom of the. spring 3 and the top 77 ofFigure 6. of the cam follower 5, as shown in Figure 1. ea Figure 8 1sa'vertieal sectional view of an or between the follower lock nut, thebase, 109

or the followers. The spring support consists oi a semi-cylindrical body11 which terminates in an inwardly directed arcuate flange 12 on the topthereof. The spring 3 rests on this flange during the valve grinding orreplacing operation.

A wall 13 is integrally formed on the bottom of the support 10, and thiswall is provided with a notch 14. The purpose of this notch is toreceive any projecting part of the cam follower 5. lVhen the spring 3has been fully compressed, in a manner previously described, it is arelatively simple matter to insert the spring support in the mannershown in Figure 1. The handle 7 is then released and the valve is freeto drop upon its seat'and can be ground or resented as necessary. To thesupport 10. we provide a rib 15 is integrally formed in the body 11,

y and hook is inserted around this rib and the support jerked out afterthe valve is ground.

Tie spring supports 10 are made in various diameters and various lengthsto fit different types of L- and T-head engines. For the overhead typeof engine, we provide a spring compressor as shown in Figures 6 to 8inclusive. This type consists of a handle 16 on one end of which a head17 is integrally formed. A. link 18 is mounted in the head 1'? asfollows: A slot 19 extends longitudinallv in the head 17. and the link18 is formed with a transverse lug 20 on the top thereof. which lug:extends across the slot 19. A plurality of hon"- .21 is formed in "thelinlt l d. and one of these holes fits over a stud 22 which extends fromthe head 23. and the spring 25 sun rounds the valve stem and urges saidvalve on to its seat.

A block 26 is placed in the combustion chamber when the head is on thebench to keep the valve from dropping down. The head 17 is also providedwith a. circular recess 52'? which receives the top of the spring 25. Anopening 28 is provided through the head 'lZ'so that the valve stem. canproject therethrough. The valve litter is arranged as shown in Figure 8and pressure is exerted on the handle 16. The spring 25 is thuscompressed and the valve spring" keeper in the end oi the stem can bequickly and easily re-- moved. The spring compressor is then re leased.and the spring is removed.

lo the modified form of spring support shown in Figure 9. the usualsemi-cylindrical. bod "ii is provided. as previonslv described. Thesrcuate flange at the top and th wall at the bottom oi? the bodv mav bedetachable, that the bottom wall 30 is formed with. pair of side fingers31-31 which grip the body of the support, and a. third finger 39;extends into a hole 33 which is formed in the body. Thus the'bottom wallis securely held on the body and a cheaper construction is was providedthan the type shown in Figures 2 and 3.

Having described our invention, we claim:

1. A valve tool comprising a semi-cylindrical body, an inwardlyextending flange integrally formed on the top of said body, the valvespring being adapted to rest thereon, an inwardly extending wall on thebottom of said body, said wall having a notch formed therein into whichthe cam follower extends.

2. A valve tool comprising a semi-cylindrical body, an inwardlyextending flange integrally formed on the top of said body, the valvespring being adapted to rest thereon, an inwardly extending wall on thebottom of said body, said wall having a notch formed therein into whichthe cam follower extends, and rib integrally founed in said hoo wherebythe tool is removed after the valve is ground.

3. A. valve tool comprising a semi-cylindrical body, a bottom walldetachably secured to the body, fingers on said wall, said body having ahole formed therein, another finger on said wall, said las a; namedfinger project ing into said hole whereby the wall is held. in position,and said wall having a notch formed therein.

4:. A valve tool comprising semi-cylindri cal body, a bottom walldetachably secured to the body, fingers on said wall, said bod j havinga hole formed therein, another finger on said wall, said last namedfinger projecting'r nto said hole whe eby the wall is held in position,and said wall having a notch formed therein, and an inwardly extendingflange integrally formed on the top of said body.

In testimony whereof, we athx our signatnres.

VIALTER L. ZIEGLER. JOSEPH "W, DURNELL.

